One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,5)(3,8,4,7)(9,10)(11,13)(12,16)(14,15)(17,18)(19,24)(20,23)(21,22)(27,31)(29,32)(1,3,6,4)(2,7,5,8)(10,15)(11,12)(18,22)(23,24)(25,26,28,30)(27,29,31,32)(9,11,14,12)(10,16,15,13)(17,19,21,20)(18,23,22,24)(1,4,6,3)(2,7,5,8)(9,12,14,11)(10,16,15,13)(17,18)(19,23)(20,24)(21,22)(25,27)(26,29)(28,31)(30,32)(1,5,6,2)(3,8,4,7)(9,13,14,16)(10,12,15,11)(17,20,21,19)(18,23,22,24)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.